Dumping box



PATENT OFFICE.

CHARLES A. TRAUGER, OF SPENCER, IOWA.

DUMPING BOX.

Specification of Letters Patent.

Patented Jan. 24, 1922.

Application filed February 7, 1921. Serial No. 443,317.

To all whom it may concern Be it known that I, CHARLES A. TRAUGER, a citizen of the United States of America, and resident of Spencer, Clay County, Iowa, have invented a new and useful Dumping Box, of which the following is a specification. 7

The object of this invention is to provide an improved dump box adapted to be mounted on a wagon or truck and used in transporting and depositing substances such as sand, gravel and the like.

A further object of this invention is to facilitate and render rapid the operation of dumping a load of sand, gravel or the like.

A further object of this invention is to provide a box with a bottom composed of pivoted leaves which may be easily and quickly tilted when desired through oscillation of a lever, but which normally are in stable .position and will not tilt or become displaced accidentally. v

A further object of this invention is to provide improved means for simultaneously tilting a plurality of pivoted leaves in a dumping box.

A further object of this invention is to provide means to prevent accidental tilting of the leaves. c

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claims and illustrated by' the accompanying drawing in which- 4 Figure 1 is a plan of a dumping box constructed according to my invention. Figure 2 is a longitudinal section of the same, showing it in position for use on a truck chassis. Figure 3 is a cross-sectionof the box on the line 33 of Figure 1.

My improved dumping box is adapted to be mounted in suitable manner on a wagon running gear or the chassis of a motor truck, such as is shown in part in Figure 2 and designated generally by the numeral 10. In theconstruction of the box the numerals 11, 12 designate spaced parallel sills of suitable dimensions. The sills 11, 12 have their forward ends notched or rabbeted, at both upper and lower corners, to receive vertically spaced, horizontally arranged cross-plates 13, 14, which are rigidly secured to and connect said sills. -At their rear ends the sills are similarly connected by cross-plates 15, 16, and the lowermost cross-plates, 14 and 16, are adapted to rest on the vehicle frame 10. The upper crossplates, 13 and 15, and the upper margins of the sills 11, 12, determine the horizontal plane of the bottom of the dumping box, and a plurality of leaves or bed plates 17, in this instance eight in number, are pivotally mounted between said sills and in their normal position occupy the planeso defined and constitute the major portion of such bottom. A body 18, of any suitable size, shape and material, is mounted on, secured to and carried by the sills 11, 12 and upper cross-plates 13, 15; and in this instance said body is shown as of hopper shape and formed of metal sheets inturned at the lower margins to form flanges 19 overlying said sills and cross-plates and secured thereto by bolts 20, screws or other fastening means. Each leaf or bed plate 17 is formed at its ends with downturned flanges 21, 22 located adjacent to and parallel with the inner faces of the sills 11, 12, and pivot bolts or rods 23 are provided, one for each of said leaves or bed plates, and extend in horizontal positions through upper portions of the sills 11, 12 and through rear end portions of the flanges 21, 22 of said plates. In this mannerthe leaves or bed plates are pivotally supported between the sills, the pivots being adjacent the rear margins of said leaves or plates. Mounted for rectilinear reciprocation against inner faces of the sills 11, 12, and adjacent the lower margins thereof, are operating bars 24, 25, preferably reciprocating in guides 26 carried by said sills and equipped with antifriction rollers 27 to facilitate sliding movement of said bars. A series of. links 28 is provided, each link pivotally connecting the operating bar 24 to one of the bed plates 17. the connection to said bed plates being at the forward end of the flanges 21 thereof. A similar seriesof links 29 is employed to connect the operating bar 25 to the bed plates 17, through the flanges 22 thereof.

The operating bars 24, 25 are connected in suitable manner, preferably being bent laterally at their rear ends and overlapped and joined, as by rivets or bolts 30, to form a cross-bar 31 extending transversely between rear end portions of the sills 11, 12 and in the space between the cross-plates 15, 16, and an arm 32 is extended rearwardly from the central portion of said cross-bar 31. A bracket 33 is secured to and extends rear wardly from the frame of the dumping box, as from the sills or rear, cross-plate 15, and an operating lever 34 is fulcrumed between its ends on said bracket. The lower end of. the lever 34: has a sliding pivotal connection to the arm 32, as by a longitudinal slot 35 in said lever engaging a pin or stud 36 by which their'upper ends are connected to the flanges 21, 22 of the bed plates, so that 0 said bed plates are thus in a condition of stable equilibrium and downward pressure of a load thereon will not result in opening movement of the bed plates,-but rather tendsto force them toward closing position, in which position margins of adjacent plates are in contact whereby the-plates form a tight bottom for the bed or body18' and -entirely close the space between the sills "11, 12 and opposed margins of the upper cross-plates 13, 15. When the upper end of the lever 84 is moved forwardly, however, the operating bars 24, 25 are drawn rearwardly, thus resulting in an oscillation of the bed plates 17 through the links 28, 29,

as indicated by dotted lines in Figure 2,.

to the end of dumping or depositing a load contained in the box or body. After the lever and operating bars have been moved a short distance the pivots of thelower ends of the links'28, 29 pass to the rear of the 7 vertical planes of the uppermost pivots thereof, and thereafter the weight of the load assists the tendency toward opening movement of the plates, and the load is deposited' without great effort on the part of the operator.

" To insure against accidental opening of v the bed plates, which might under certain "conditions occur when the vehicle is pass ing over rough surfaces, a "stop pin such as 37' may be employed to prevent rearward movement of the operating bars 24:, 25. This pin 37 may be passed through the lower cross-plate 16 immediately behind the crossarm 31 connecting the operating bars, and

ma be sustained by a clevis 38carried by sai cross-plate.

' By the use of this mechanisnn'which iseconomical and eflicient in construction, a load of substance such as sand or gravel may be very easily and quickly deposited andmuch time and labor-saved in the hauling and placing of such materials.

"The guides 26 may be soplaced as to serve for stops to limit forward movement of the operating bars 24;, 25, by contact of lower ends of some of the links therewith.

I claim as my invention- 1. A dumping box, comprising an open frame, a body thereon, bed plates hingedly mounted in said frame and adapted to form a bottom for said body when in horizontal 'osition an o eratinv bar mounted for reciprocation, links pivotally connecting said operating bar to the free mar in of each of said bed plates, means for oscillating said bar, and means to prevent accidental movement of said bed plates away from the horizontal position.

2, A dumpin box, comprising. an open frame, a bod thereon, bed plates hingedly mounted in said frame and adapted'to form a bottom for said body when in horizontal position, an operating bar mounted for reciprocation, links pivotally connecting said operating bar'to the respective bed plates, means for reciprocating said bar, and a removable stop pin adapted to be mounted insaid frame and prevent opening move ment of said operating bar at times.

3. A dumping box, comprising an open frame, a body thereon, bed plates hingedly mounted in said frame and adapted to form a bottom for said body when in horizontal position, an operatingbar mounted for reciprocation, guides on said frame for said operating bar, rollers on said'frame with which said bar contacts, links pivotally connecting said bar to the respective bed plates,

and means for reciprocating said bar.

l. A dumpin box, comprising an open frame, a body thereon, bed plates arranged in said frame and adaptedto form a bottom for said body when in horizontal position,

each of said plates being formed witha downturned flange at its end, an operating bar mounted for reciprocation, pivotal con nections between one end of each flange and the frame, pivotal connections between the opposite end of'each flange and the operating bar, and means for reciprocating said Signed at Spencer, in the county of Clay and State of bar, 1920. c

- CHARLES A. TRAUGER Iowa this 2nd day of Novem 

